Gas/liquid flow behaviours in a downward section of large diameter vertical serpentine pipes

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Gas-liquid_flow_behaviours-serpentine pipes-2015.pdf (6.18 MB)

Date

2015-10-09

Authors

Almabrok, Almabrok Abushanaf
Aliyu, A. M.
Lao, Liyun
Yeung, Hoi

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Journal Title

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Volume Title

Publisher

Elsevier

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Type

Article

ISSN

0301-9322

Format

Free to read from

URI

http://dx.doi.org/10.1016/j.ijmultiphaseflow.2015.09.012.
 http://dspace.lib.cranfield.ac.uk/handle/1826/10843

Citation

Almabrok A. Almabrok, Aliyu M. Aliyu, Liyun Lao, Hoi Yeung, Gas/liquid flow behaviours in a downward section of large diameter vertical serpentine pipes, International Journal of Multiphase Flow, Volume 78, January 2016, Pages 25-43

Abstract

An experimental study on air/water flow behaviours in a 101.6 mm i.d. vertical pipe with a serpentine configuration is presented. The experiments are conducted for superficial gas and liquid velocities ranging from 0.15 to 30 m/s and 0.07 to 1.5 m/s, respectively. The bend effects on the flow behaviours are significantly reduced when the flow reaches an axial distance of 30 pipe diameters or more from the upstream bend. The mean film thickness data from this study has been used to compare with the predicted data using several falling film correlations and theoretical models. It was observed that the large pipe data exhibits different tendencies and this manifests in the difference in slope when the dimensionless film thickness is plotted as a power law function of the liquid film Reynolds number.

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Software Description

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Github

Keywords

Downward gas/liquid flow, Flow development, Bend, Liquid film thickness, Void fraction

DOI

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